<p>an interesting interdisciplinary program at the graduate (phd) level that you might want to look into is political psychology. i know suny-stony brook, george washington and several other schools have dedicated programs.</p>
<p>my suggestion for your immediate future--should you decide to transfer to an american university--is to take courses in all of the fields you mentioned. if it means you can only major in one field and minor in another, youll be better for it so long as you make note of your academic breadth on any future resumes. also, many universities now offer opportunities to design your own major, something to consider given that your academic interests are very well suited for an individualized course of study.</p>